u have to write an equation and solve.
this year soy beans crop of 224,000 tons represents an increase of 40% over last years crop. how many tons of soy beans were produced last year.
2007-04-16 15:27:46 · 13 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
224,000= x + .40x , where x is the amount of soybeans from last year.
224,000= 1.40 x
x= 160,000 tons
2007-04-16 15:30:19 · answer #1 · answered by victoria 5 · 0⤊ 0⤋
Call last year's harvest x. Then a 40% increase over x, that is to say x + 40% times x, or 1.4x, equals 224,000. Just write this as an equation, divide both sides by 1.4 and you have the answer.
2007-04-16 15:32:12 · answer #2 · answered by jiyuztex 2 · 0⤊ 0⤋
This is simple if you know how to set up an equation. You must put 224,000 tons over x, or what ever your variable is, then put 40% over 100. Next you Cross multiply then divide. Multiply 224,000 tons by 40% then divide this by 100.
2007-04-16 15:34:15 · answer #3 · answered by Danny 2 · 0⤊ 0⤋
I would write an algebraic equation and then solve:
let x = last years crop
(last years crop +40% increase = 224,000 tons):
x + .40x = 224,000 tons (combine like terms)
1.40x = 224,000 tons (divide by 1.40)
x = 160,000 tons
Last years crop was 160,000 tons
2007-04-16 15:37:01 · answer #4 · answered by Anonymous · 0⤊ 0⤋
1.4x represents the increased amount over last years crop
1.4x=224000
x=160 000 tons of soy beans
2007-04-16 15:32:18 · answer #5 · answered by H.A. 2 · 0⤊ 0⤋
let x be the amount of soy beans produced last year....
the present:
x+.40x(represents the inflation)=224000
move the decimal points....
10x+4x=2240000
14x=2240000
x=160000 tons
2007-04-16 15:34:20 · answer #6 · answered by adamantine 2 · 0⤊ 0⤋
X=LAST YEAR crop
X+40X/100=224000
7X/5=224000
X=160000 tons
2007-04-16 15:33:20 · answer #7 · answered by iyiogrenci 6 · 0⤊ 0⤋
the formula of getting this is
O=P/(1+r/n)^nt
O original amount which is unknown
P final amount =224,000 tons
r rate of increase or decrease = 40% or 0.40
n number of times it increases or decreases a year =1
t time length of increase or decrease=1
+ is used when it increased
- when it decreased
O= 224,000tons/(1+0.40/1)^(1*1)
O=224,000tons/(1.40)
O=160,000tons
2007-04-16 15:37:10 · answer #8 · answered by king v 1 · 0⤊ 0⤋
2x + 2y = 20 employing the simultaneous approach 2x - 2y = 4 ____________ 4x = 24 ( divide via 4) x = 6 exchange x in one among the two equations 2x + 2y = 20 2 (6) + 2y = 20 12 +2y = 20 2y = 20 - 12 2y = 8 (divide via 2) y = 4 answer : X = 6 , Y = 4
2016-12-20 16:47:25 · answer #9 · answered by Anonymous · 0⤊ 0⤋
Equation ...
224000=1.4y (y=last year's crop)
224000/1.4=y
y=160000
Last year's crop = 160,000 tons soy beans
2007-04-16 15:36:30 · answer #10 · answered by Anonymous · 0⤊ 0⤋